ee5b6a2550
This allows runtimes in different packages (dockertools, rkt, kuberuntime) to share the same logic. Before this change, only dockertools support this feature. Now all three packages support image pull throttling.
130 lines
3.9 KiB
Go
130 lines
3.9 KiB
Go
/*
|
|
Copyright 2016 The Kubernetes Authors.
|
|
|
|
Licensed under the Apache License, Version 2.0 (the "License");
|
|
you may not use this file except in compliance with the License.
|
|
You may obtain a copy of the License at
|
|
|
|
http://www.apache.org/licenses/LICENSE-2.0
|
|
|
|
Unless required by applicable law or agreed to in writing, software
|
|
distributed under the License is distributed on an "AS IS" BASIS,
|
|
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
|
|
See the License for the specific language governing permissions and
|
|
limitations under the License.
|
|
*/
|
|
|
|
package kuberuntime
|
|
|
|
import (
|
|
"io/ioutil"
|
|
"net/http"
|
|
"time"
|
|
|
|
"k8s.io/kubernetes/pkg/api"
|
|
"k8s.io/kubernetes/pkg/client/record"
|
|
"k8s.io/kubernetes/pkg/credentialprovider"
|
|
internalApi "k8s.io/kubernetes/pkg/kubelet/api"
|
|
kubecontainer "k8s.io/kubernetes/pkg/kubelet/container"
|
|
"k8s.io/kubernetes/pkg/kubelet/images"
|
|
"k8s.io/kubernetes/pkg/kubelet/lifecycle"
|
|
"k8s.io/kubernetes/pkg/kubelet/network"
|
|
proberesults "k8s.io/kubernetes/pkg/kubelet/prober/results"
|
|
"k8s.io/kubernetes/pkg/types"
|
|
kubetypes "k8s.io/kubernetes/pkg/types"
|
|
"k8s.io/kubernetes/pkg/util/flowcontrol"
|
|
)
|
|
|
|
type fakeHTTP struct {
|
|
url string
|
|
err error
|
|
}
|
|
|
|
func (f *fakeHTTP) Get(url string) (*http.Response, error) {
|
|
f.url = url
|
|
return nil, f.err
|
|
}
|
|
|
|
// fakeRuntimeHelper implements kubecontainer.RuntimeHelper interfaces for testing purposes.
|
|
type fakeRuntimeHelper struct{}
|
|
|
|
func (f *fakeRuntimeHelper) GenerateRunContainerOptions(pod *api.Pod, container *api.Container, podIP string) (*kubecontainer.RunContainerOptions, error) {
|
|
var opts kubecontainer.RunContainerOptions
|
|
if len(container.TerminationMessagePath) != 0 {
|
|
testPodContainerDir, err := ioutil.TempDir("", "fooPodContainerDir")
|
|
if err != nil {
|
|
return nil, err
|
|
}
|
|
opts.PodContainerDir = testPodContainerDir
|
|
}
|
|
return &opts, nil
|
|
}
|
|
|
|
func (f *fakeRuntimeHelper) GetClusterDNS(pod *api.Pod) ([]string, []string, error) {
|
|
return nil, nil, nil
|
|
}
|
|
|
|
// This is not used by docker runtime.
|
|
func (f *fakeRuntimeHelper) GeneratePodHostNameAndDomain(pod *api.Pod) (string, string, error) {
|
|
return "", "", nil
|
|
}
|
|
|
|
func (f *fakeRuntimeHelper) GetPodDir(kubetypes.UID) string {
|
|
return ""
|
|
}
|
|
|
|
func (f *fakeRuntimeHelper) GetExtraSupplementalGroupsForPod(pod *api.Pod) []int64 {
|
|
return nil
|
|
}
|
|
|
|
type fakePodGetter struct {
|
|
pods map[types.UID]*api.Pod
|
|
}
|
|
|
|
func newFakePodGetter() *fakePodGetter {
|
|
return &fakePodGetter{make(map[types.UID]*api.Pod)}
|
|
}
|
|
|
|
func (f *fakePodGetter) GetPodByUID(uid types.UID) (*api.Pod, bool) {
|
|
pod, found := f.pods[uid]
|
|
return pod, found
|
|
}
|
|
|
|
func NewFakeKubeRuntimeManager(runtimeService internalApi.RuntimeService, imageService internalApi.ImageManagerService, networkPlugin network.NetworkPlugin, osInterface kubecontainer.OSInterface) (*kubeGenericRuntimeManager, error) {
|
|
recorder := &record.FakeRecorder{}
|
|
kubeRuntimeManager := &kubeGenericRuntimeManager{
|
|
recorder: recorder,
|
|
cpuCFSQuota: false,
|
|
livenessManager: proberesults.NewManager(),
|
|
containerRefManager: kubecontainer.NewRefManager(),
|
|
osInterface: osInterface,
|
|
networkPlugin: networkPlugin,
|
|
runtimeHelper: &fakeRuntimeHelper{},
|
|
runtimeService: runtimeService,
|
|
imageService: imageService,
|
|
keyring: credentialprovider.NewDockerKeyring(),
|
|
}
|
|
|
|
typedVersion, err := runtimeService.Version(kubeRuntimeAPIVersion)
|
|
if err != nil {
|
|
return nil, err
|
|
}
|
|
|
|
kubeRuntimeManager.containerGC = NewContainerGC(runtimeService, newFakePodGetter(), kubeRuntimeManager)
|
|
kubeRuntimeManager.runtimeName = typedVersion.GetRuntimeName()
|
|
kubeRuntimeManager.imagePuller = images.NewImageManager(
|
|
kubecontainer.FilterEventRecorder(recorder),
|
|
kubeRuntimeManager,
|
|
flowcontrol.NewBackOff(time.Second, 300*time.Second),
|
|
false,
|
|
0, // Disable image pull throttling by setting QPS to 0,
|
|
0,
|
|
)
|
|
kubeRuntimeManager.runner = lifecycle.NewHandlerRunner(
|
|
&fakeHTTP{},
|
|
kubeRuntimeManager,
|
|
kubeRuntimeManager)
|
|
|
|
return kubeRuntimeManager, nil
|
|
}
|